MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm for phishing or malware distribution. The presence of a 'download button' heuristic further supports a malicious intent to trick users into downloading a payload. ClamAV detection and ML classification strongly indicate malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://crysiq.ru/uplcv?utm_term=application+to+convert+word+document+to+pdf PDF link annotation
- http://accronline.com/userfiles/file/ridufixe.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d70c72ba9b---fugiribugixez.pdfIn PDF document text
- http://marinda.ru/pics/images/file/sidijotizivazemarigusol.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080074fd1cf3---mimokozezix.pdfIn PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/tizimewile.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610feb32d9505---45709202486.pdfIn PDF document text
- http://lex-ter.ru/admin/ckfinder/userfiles/files/64758471830.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/50d196183c07334692517d5a64d761ba/78273718187.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b62c22d5005361640240b8e2df89f5a9/juradafi.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/fobax.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611f1a128309c---49416490101.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1aa51bc14---96054906076.pdfIn PDF document text
- https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/8d57a2a7e5148e680f60ac49e23d5069/mopagovuwiloseripomibev.pdfIn PDF document text
- https://wagaskar.com/media/64970485945.pdfIn PDF document text
- http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/74895673956.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/1272ce017c590cfbed5ec3334e297843/vudixaxuriruvo.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/12271320170.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e515672ce00---61639414929.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/dvojv1p4cs4bjf48338pc4vdm9/6973866245.pdfIn PDF document text
- http://x-site.by/upload/editor/files/golareladovozupoken.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115050bea26a---37396257756.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/fsdvhnduoo85bc39v3p1i5nrsf/kezapiwirovogegef.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/25001da7bdc27cb6ee611e695293854c/93702026335.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607d3af04dcfb---355997615.pdfIn PDF document text
- http://vanillasky-ch.com/images/files/20247653439.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c8e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E3 | 16228 bytes |
SHA-256: e5a50a779cfb4e651e2efdf1edf2fd0921774db9f643d08b06d63dda7ca3625c |
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font_01_sfnt_off0000f2c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C1 | 10844 bytes |
SHA-256: 86d10e79edc5fe4ccabaa393a0c44ffcf660b4a43d77bfaed8f4061babfc1da0 |
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font_02_sfnt_off00010be0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BE0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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